Set the default language for an instance
Change the language that appears by default for an instance.
Before you begin
Activate the languages that your users need. For more information, see Activate a language for supported languages or Translating to an unsupported language for custom translations.
Role required: admin
About this task
This property defines the language that users with a role see if a language is not specified in their user record. Users without a role see the default guest language, as described in User specific language.